Wire-covering machine



D. NOBLE. WIRE COVERING MACHIN APPLICATION FILED D WMQFS/ ML) UNITED STATES DONALD NOBLE, 0F BRIDGEPORT, CONNECTICUT.

WIRE-COVERING MACHINE.

Specification of Letters Patent.

Application filed October 27, 1919. Serial No. 333,564.

To all 10 item it may cancer-n:

Be it known that I, DONALD NOBLE, a subject of the King of Great Britain, residing at Bridge ort, in the county of Fairfield and State of onnecticut, have invented certain new and'useful Improvements in Wire-Covering Machines, of which the following is a specification, reference being had therein to the accompanying drawings.

This invention relates to improvements 111 machines for covering or insulating wire with yarn or equivalent material and more particularly to improvements in the wirecovering machine in part disclosed in my prior United States atent No. 1,000,109, dated August 8, 1911.

In the construction shown and described in my patent referred to, there was employed a plurality of yarn deliveryor feed rolls carried by spindles journaled in bearing-sleeves projecting from a casing suitably secured to the rear of the spinning head. -While theserolls performed their function satisfactorily in operation, it was found to be extremely difficult to manufacture and assemble the parts in commercial quantities.

The primary object of the resent invention is to provide a 'spinningcad having a wirerovering material feed-roll or rolls supported and actuated in a manner greatly facilitating manufacture and assembly of the parts, thereby p rocuring a finished product at less cost and with greater accuracy than was heretofore possible.

Another object of this invention is to provide simplified SUPpOlfillg and actuating means for the feed-roll or rolls whereby lubricant is prevented from reaching the feedroll from the actuating mechanism, and marring of the product in this manner is obviated.

The invention has for a further object to provide improved tensioning means for con-v trolling the relative,rotation of the yarn-' cop with respect to the rotation of the spinning-head.

A still further object of this invention is to provide proper tensioning means for controlling the yarn intermediate-the feed-roll or rolls and the spinning nozzle of the head,

in keeping ployed.

Other objects of this invention will be apparent from the following description and claims.

In its preferrcdform my invention is em bodied in a spinning head comprising a disk,

with the quality of yarn em- Patented Feb- 8, 1921 suitably secured upon a rotating shaft and" from which project a plurality of forwardly extending posts sustaining a ring in spaced relation with respect to the disk. Projecting rearwardly from the disk is a flange having a casing provided with oppositely disposed-Y apcrturcd seats in which are snugly fitted spaced bushings affording bearings for a feed-roll carrying spindle arranged substantially at right angles with respect to the axis of rotation of the spinning head. Secured upon the spindle intermediate the bushings 1s a worm-wheel constantly in engagement with a stationary worm provided on a sleeve suitably fixed upon the framework of'the A machine and affording a bearing for thespinning-head actuating shaft. It will be obvious that upon rotation of the spinninghead, the spindle will be simultaneously rotated. At its outer end tliespindle carries a feed-roll extending beyond the periphery of the flange from a suitable recess in. the latter.

A cop of wire-covering material is jour naled upon the spinning-head carrying shaft intermediate the ring and the disk and the relative rotation of the cop is controlled by a plurality of spring-pressed tension-pins carried by an adjustable supporting element in a manner affording a centrifugally halanced device properly controlling the rotation of the cop. In a device of the present character revolving at a very high speed, it is essential that the parts be properly balanced, and. it will be observed throughout the following description that in the construction of the present improvement this feature was constantly borne in mind. The yarn is led from the cop over one of the posts, through an'apcrture in the disk and is then wound around the feed-roll a number posts as may be necessary and is led through one of the guides provided in the ring upon opposite sides of the post. From this point the yarn is directed to its delivery nozzle for winding upon a wire passing axially through the nozzle.

In the accompanying drawings, Figure 1 is a perspective'view, partly in section. of my present improved spinning-head. Fig. 2 is a longitudinal sectional view of the same,and Fig. 3 is a rear end view in elevation of the head.

Referring to the several figures of the drawings in which like parts are similarly designated, the present improved spinninghead comprises a disk 1 provided with a rearwardly projecting forwardly-extemling hub 23. The disk 1 is secured upon a rotating shaft 1 by means of a set-screw a") threaded through the hub 33. As usual, the shaft 4 is hollow to provide an opening 6 through which the wire to be covered is led to the spinning nozzle later referred to. Surrounding the shaft in advance of and of equal diameter as the hub 3 is a sleeve or bushing 7 preferably of fiber or like material presenting a smooth inner surface whereby the bushing may rotate freely upon the shaft. Fittingtightly over the bushing 7 so as to rotate in umson therewith is a peripherally ribbed cop-car rying bushing 8. embracing the hub 3 and formed at its rearward end with a flange 9 held in spaced relation with respect to the disk 1 by means of a washer 10 preferably" of felt or like material. A cop ll of wire- .covering material such as yarn is carried by the usual cop-tube 12 forced over the ribbed periphery of the bushing 8. From the described construction it will be understood that the cop 11, tube 12, and bushings T and 8 rotate as one upon and relatively to the shaft 4.

Vithin the flange 2 projecting rearwardly from the disk 1 is provided a casing 13 preferably cast as one with the disk and flange. This casing 13 is formed with a rental segmental opening 14 leading into diametrically-opposite, rectangular recesses, of one of which the side walls, as 15. are apertured to afford seats for oppositely dis osed spaced beari'ng'bushings 1.6. The bus iings flange 2 and a short.

16 fit snugly within the apertures 17 in the casing and serve as bearings for a feed-roll carrying spindle 18, upon which is suitably secured a worm-wheel 19 intermediate. the.

spaced bushings 16. The worm-Wheel 19 is constantly in mesh with a worm 20 provided on a sleeve 21 rigidly secured in a suitable manner upon the machine frame (not shown), whereby the worm is held sta-tiondie 18 could besupported and actuated upon the opposite side of shaft 4, if desired. It

. will be particularly observed that the feedroll supporting and actuating parts :{re now of such a nature as to permit of their ready manufacture and assemblage, while the passage of lubricant is entirely prevented from the casing 13 to the feed-roll or to the outer periphery of the spinning-head. Projecting forwardly from the disk 1 are a plurality of posts, as 25, extending substantially parallel to the shaft 4 and sustaining a ring 26 in spaced relation with respect to the disk 1.

While as explained, the cop 11 is capable of revolution relatively to the rotation of the shaft 4 during the unwinding of the yarn, from the cop, it is necessary to properly control such relative revolution in order to prevent spilling of the yarn. To this end a tensionpin supporting element 27 is adapted to be adj ustably secured by means of a set-screw 28 upon the forward end of shaft l. are recesses 29 open at their outer ends, within each of which recesses is slidingly mounteda tension-pin 30 adapted to bear upon a bushings 7, 8 is preferably provided another washer 32 of felt or like material. Springs 33 are interposed between the heads of the Formed within said element 27' 'asher 31, between which and the tension-pins 30 and the flange of a cap 34,

which latter is secured to the supporting element .27 by means of a screw 35. The pins 30 are substantially parallel to shaft t, and serve to impose the proper tension upon the'yarn-cop under the action of the springs 33, the force of which may be-regulated by adjustment of the supporting'elee mest 27 upon the shaft 4:. A spinning-nozzle is rovided in the form of a (will 30 projecting centrally within the s aft 4 through a suitable aperture provided in the cap 3 The screw 35, which is employed 2 memo!) theparts secured thereto as described. The

covering material carried by the cop 11 is usually. of yarn comprising a number of strands which when wound upon the wire must remain in parallelism, that is, the strands must not cross each other in perfect work. To accomplish the covering of the wire in this manner involves an extreme nicety of control of the yarn which is satisfactorily attained by the present spinninghead regardless of the yarn employed or the diametrical size of the wire.

The yarn is led from the cop ll around one of the posts which is preferably provided with a light roll 38, acting toprevent the yarn from sliding along the surface of the disk 1, thence through a self-threading inclined aperture39 formed in the disk The yarn iswound around the feed-roll a number of times requisite to secure proper feeding action upon rotation of the roll, which feeding action as previously stated should provide yarn slightly in excess oi the quantity needed, causing slippage of the yarn upon the :feed-roll, whereby the tension upon the yarn is continuously equalized, From the feed-roll the yarn passes through an .aperture 40 in the disk, similar to apreture 39,

-' and thence around one of the posts 25 a number of times, 2'. (2., in either whole or fractional convolutions as may be necessary. This is rendered possible by the provision of apertures ll and 42 in the ring 26 upon opposite sides of the post 25, through either of which apertures the yarn may be led. The

yarn then passes underneath a guide-finger 43 on the cap 34 to the quill 36 as indicated, where it is Wound upon the wire.

Having thus set forth the nature of the invention, what I claim herein is- 1. The combination in a wire-covering machine, of a rotating spinning-head, a cop of yarn or equivalent material carried by and rotatable relatively to the rotation of said spinning-head, means for controlling said relative rotation of the cop, a delivery nozzle, equalizing feeding means for drawing the yarn off the cop, and yarn-tensioning means intermediate the feeding means and the delivery-nozzle.

2. The combination in a wire-covering machine, of a rotating spinning-head, a cop of) yarn or equivalent material carried by and rotatable relatively to the rotation of said spinning-head, adjustable tensioning means for controlling said relative rotation of the means and the delivery-nozzle.

cop, a delivery-nozzle, equalizing feeding means tending to draw the yarn oil the cop in excess of the quantity needed, and yarntensioning means intermediate the feeding 3. The combination in a rotating spinninghead for wire-covering machines, of feeding means for the wire-covering material' comprising a spindle arranged substantially in parellelism with a diameter of said spinninghead, yarn-engaging means carried by said spindle, a bushing seated in said head in which said spindle is journaled, and a driven element adjacent the inner end of said bushing adapted to transmit rotation to said spindle.

4:. The combination in a rotating spinninghead-for wire-covering machines, of feeding means for the Wire-covering material comprising a spindle arranged substantially at right angles with respect to the axis of rotation of the spinning-head, an apertured seat provided in said head, a bushing fitting snugly in said seat affording a bearing for said spindle, and means for rotating said shaft to feed the wire-covering material.

5. The combination in a rotating spinninghead for wire-covering machines, of feeding means for the wire-covering material comprising a spindle arrangedsubstantially at right angles with respect to the axis of rotation of the spinning head, an apertured scat provided in said head, a bushing fitting snugly in said seat affording a bearing for said spindle, yarn-engaging means carried by said spindle projecting beyond the periphery oi the spinning-head, and means for rotating said spindle.

6. The combination in a rotating spinning head for wire-covering machines, of feeding means for the wire-covering material comprising a spindle arranged substantially at' right angles with respect to the axis of rota tion of the spinning-head, oppositely disposed apertured seats provided in said head, spaced bushings fitting'snugly in said seats affording bearings for said spindle, a gearmember carried by said spindle intermediate the bushings, and means for rotating said gear-member.

7. The combination in a rotary s inninghead for wire-covering machines, 0' feeding means for the wire-covering material including a rotating roll projecting beyond the sitely disposed apertured seats provided in said head, spaced bushings fitting snugly in saidiseats affording bearings for said spindle, a gear member carried by said spindle intermediate the bushings, means for rotating said gear'member, a covering-material engaging rollcarried by one end of said spindle, and a counter-balance for the opposite end of the spindle.

9. In a wire-covering machine, the combination in aspinning-head, of a coveringmaterial supply carried by said head, feeding means for drawing olf the covering-material from said supply, a spinningmozzle, and means for directing the covering material from said feeding means to said nozzle including a tension-post around which the covering material is wound.

10. In a wire-covering machine, the combination in a spinning-head, of a coveringmaterial supply carried by said head, feeding means for drawing off the=covering-material from said supply, a spinning-nozzle, means for directing the covering-material from said feeding means to said nozzle including a tension-post around which the covering-ma- 'terial is wound, and means permitting the winding of the covering-material around .said post in whole and fractional convolutions.

11. In a wlre-covering machine, the combination in a rotating spinning-head, of acovering-material supply carried by said head, tensioning means for the covering-material supply, feeding means for drawing off the covering-material from said supply against the action of said tensioning means, a spinning-nozzle, means for directing the covering-material from said feeding means to said nozzle including a tension-post arranged substantially parallel with the axis of rotation of the spinning-head, and covering-material guides arranged upon opposite sides of the tLIlSlOIbPOSl? permitting the winding of the covering-material around said post in whole and fractional convolutions.

12. The combination with an actuating shaft of a wire-covering machine, of a rotating spinning-head, a cop of wire-covering material carried by and rotatable relatively to the rotation of said spinning-head, and means for controlling said relative rotatlon of the cop including a plurality of tensionrotating said feed-roll, and a delivery-.

nozzle for the covering material arranged forwardly of said ring.

14. The combination with an actuating shaft of a wire-covering machine, of a rotating spinning-head carried by said shaft comprlsmg a CllSk, a flange pro ecting rearwardly of said disk, a mug, a plurality of posts arranged substantially parallel with said shaft sustaining said ring in spaced relation with respect to said disk, a wirecovering material feed-roll projecting beyond the periphery of said flange, means for actuating said feed-roll from said shaft whereby lubricant is prevented from reaching the feed-roll through said flange, guides permitting the covering-material to be wound in whole and fractional convolutions about one of said posts, and a deliverynozzle for the covering-material.

15. The combination with an actuating shaft of awire-covering machine, of a rotating spinning-head carried bysaid shaft including a disk, a casing projecting rearwardly from said disk, a recess provided in said casing having side walls formed with oppositely disposed apertures, spaced bushings seated in said apertures, a feed-roll spindle journaled in said bushings, and

means interposed between said bushings for rotating said spindle.

In testimony whereof, I have signed my name to this specification.

DONALD NOBLE. 

